import { createReadStream, createWriteStream } from "node:fs";
import { mkdir, readdir, writeFile } from "node:fs/promises";
import { dirname, resolve } from "node:path";
import { pipeline } from "node:stream/promises";
import { fileURLToPath } from "node:url";
import { build } from "esbuild";
import locales from "../locales/index.js";
import meta from "../package.json" with { type: "json" };

const root = resolve(dirname(fileURLToPath(import.meta.url)), "..");
const viewsSrc = resolve(root, "packages/backend/src/server/web/views");
const viewsOut = resolve(root, "packages/backend/built/server/web/views");

await mkdir(viewsOut, { recursive: true });
await mkdir(resolve(root, "built/_client_dist_/locales"), { recursive: true });

const localeVersion = { _version_: meta.version };
for (const [lang, locale] of Object.entries(locales)) {
	await writeFile(
		resolve(root, `built/_client_dist_/locales/${lang}.${meta.version}.json`),
		JSON.stringify({ ...locale, ...localeVersion }),
		"utf-8",
	);
}

for (const entry of await readdir(viewsSrc, { withFileTypes: true })) {
	if (!entry.isFile()) continue;
	await pipeline(
		createReadStream(resolve(viewsSrc, entry.name)),
		createWriteStream(resolve(viewsOut, entry.name)),
	);
}

await build({
	entryPoints: [
		resolve(root, "packages/backend/src/server/web/boot.js"),
		resolve(root, "packages/backend/src/server/web/bios.js"),
		resolve(root, "packages/backend/src/server/web/cli.js"),
	],
	outdir: resolve(root, "packages/backend/built/server/web"),
	define: {
		LANGS: JSON.stringify(Object.keys(locales)),
	},
	minify: true,
});

await build({
	entryPoints: [
		resolve(root, "packages/backend/src/server/web/style.css"),
		resolve(root, "packages/backend/src/server/web/bios.css"),
		resolve(root, "packages/backend/src/server/web/cli.css"),
	],
	outdir: resolve(root, "packages/backend/built/server/web"),
	minify: true,
});